28497440

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10477}}^1$

素因数の和:10509

約数の個数: 48

約数和(自身を含む): 71292312

約数和(自身を除く): 42794872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 10477, 20954, 41908, 52385, 83816, 104770, 167632, 178109, 209540, 335264, 356218, 419080, 712436, 838160, 890545, 1424872, 1676320, 1781090, 2849744, 3562180, 5699488, 7124360, 14248720, 28497440]

約数ペア:

[(1, 28497440), (2, 14248720), (4, 7124360), (5, 5699488), (8, 3562180), (10, 2849744), (16, 1781090), (17, 1676320), (20, 1424872), (32, 890545), (34, 838160), (40, 712436), (68, 419080), (80, 356218), (85, 335264), (136, 209540), (160, 178109), (170, 167632), (272, 104770), (340, 83816), (544, 52385), (680, 41908), (1360, 20954), (2720, 10477)]